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EP 2 240 394 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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04.07.2012 Bulletin 2012/27 |
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Date of filing: 05.02.2009 |
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International Patent Classification (IPC):
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International application number: |
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PCT/EP2009/051300 |
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International publication number: |
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WO 2009/101019 (20.08.2009 Gazette 2009/34) |
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SPOOL FOR WINDING METALLIC WIRE
SPULE ZUM WICKELN EINES METALLDRAHTES
BOBINE POUR ENROULER UN FIL MÉTALLIQUE
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Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO
PL PT RO SE SI SK TR |
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Priority: |
14.02.2008 IT MN20080002 U
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Date of publication of application: |
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20.10.2010 Bulletin 2010/42 |
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Proprietor: Sodetal SAS |
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55310 Tronville-en-Barrois (FR) |
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Inventor: |
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- RUGGENENTI, Luca
I-25010 Remedello (IT)
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Representative: Modiano, Micaela Nadia et al |
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Modiano & Partners (IT)
Via Meravigli, 16 20123 Milano 20123 Milano (IT) |
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References cited: :
WO-A-2008/128925 JP-A- 2005 096 886 US-A- 2 212 377 US-A- 2 662 701
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GB-A- 652 954 US-A- 2 150 392 US-A- 2 636 695 US-A- 3 542 308
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Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
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Technical Field
[0001] The present invention relates to a spool for winding metallic wire.
Background Art
[0002] It is known that spools for winding metallic wire, which comprise a tubular body
for supporting the coil of wire that is provided, at its ends, with wall elements
for containing the coil, are widely used in the industrial field.
[0003] Known spools suffer some drawbacks.
[0004] A spool with a tubular barrel and head members assembled in a firm and rigid manner
is known from
US 2 212 377.
Disclosure of the Invention
[0005] Therefore the aim of the present invention is to provide a spool that has maximum
constructive simplicity and considerable stiffening characteristics.
[0006] This aim, this and other objects which will become better apparent hereinafter, are
achieved by a spool for winding metallic wire, according to the present invention,
comprising a tubular body for supporting a coil of wire that is provided, at ends
thereof, with wall elements for containing said coil, at least one of which is provided,
at a surface directed outward, with at least one pawl for engagement with means for
turning said spool, each wall element comprising a flat flange with a stiffening fold
out at the outer edge, which is jointly connected by welding to the corresponding
end of the tubular body, and a flat complementary flange, which is seamed by spot
welding to the outer surface of said flange, at least one pawl being jointly connected
to said complementary flange of at least one wall element, and the two ends of the
tubular body having the wall shaped so as to form a bevel that allows convenient ways
of approaching the spindle designed to support the spool during operation.
Brief description of the drawings
[0007] Further characteristics and advantages of the spool according to the present invention
will become better apparent from the description of a preferred but not exclusive
embodiment thereof, illustrated by way of non-limiting example in the accompanying
drawings, wherein:
Figure 1 is a perspective view of the spool, according to the invention;
Figure 2 is a view of a detail of Figure 1.
Ways of carrying out the Invention
[0008] With reference to the figures, reference numeral 1 designates a tubular body for
supporting a coil of wire that is provided, at its ends, with two wall elements 2
and 3, which are mirror-symmetrically identical.
[0009] Therefore, only the element 2 is described. It comprises a flat flange 4, with a
stiffening fold 4a at the outer edge, jointly connected by welding 4b to the corresponding
end of the tubular body 1.
[0010] A flat complementary flange 5 is seamed to the flange 4 at the outer surface of the
flange by means of spot welds 5a, 5b and is provided with at least one and preferably
two jointly connected pawls 6 and 7 which are associated with the complementary flange
by welding at an inner edge 6a for the pawl 6; as regards such pawls, it should be
noted that they might be absent in the wall element 3.
[0011] The pawls are adapted for engagement with means for turning the spool.
[0012] Finally, the two ends of the tubular body 1 have the wall shaped like a bevel 1a
for the end that can be seen in Figure 2; such bevel allows convenient ways of approaching
the spindle designed to support the spool during operation.
[0013] From what has been described it is readily evident that the spool according to the
invention lends itself to be provided according to very simple manufacturing methods,
and it is also noted that it has stiffness characteristics that ensure maximum correctness
in operation.
[0014] Where technical features mentioned in any claim are followed by reference signs,
those reference signs have been included for the sole purpose of increasing the intelligibility
of the claims and accordingly, such reference signs do not have any limiting effect
on the interpretation of each element identified by way of example by such reference
signs.
1. A spool for winding metallic wire, comprising a tubular body (1) for supporting a
coil of wire that is provided, at ends thereof, with wall elements (2,3) for containing
said coil, at least one of which is provided, at a surface directed outward, with
at least one pawl (6,7) for engagement with means for turning said spool, each wall
element (2,3) comprising a flat flange (4) with a stiffening fold (4a) at the outer
edge, which is jointly connected by welding (4b) to the corresponding end of the tubular
body (1), and a flat complementary flange (5), which is seamed by spot welding (5a,5b)
to the outer surface of said flange, at least one pawl (6,7) being jointly connected
to said complementary flange (5) of at least one wall element (2,3), the two ends
of the tubular body (1) having the wall shaped so as to form a bevel (1a) that allows
convenient ways of approaching the spindle designed to support the spool during operation.
2. The spool according to claim 1, characterized in that each pawl (6,7) is jointly connected to the corresponding complementary flange (5)
by welding at the inner edge.
1. Spule zum Aufwickeln von Metalldraht, mit einem rohrförmigen Körper (1) zum Abstützen
eines Drahtwickels, der an seinen Enden mit Wandelementen (2, 3) zum Begrenzen des
Wickels versehen ist, von denen zumindest eines an einer nach außen gerichteten Fläche
mit zumindest einem Zapfen (6, 7) zum Eingriff mit Mitteln zum Drehen der Spule versehen
ist, wobei jedes Wandelement (2, 3) einen mit einem Versteifungsumschlag (4a) versehenen
flachen Flansch (4) am äußeren Rand, der durch Schweißen (4b) mit dem entsprechenden
Ende des rohrförmigen Körpers (1) verbunden ist, und einen flachen Komplementärflansch
(5) aufweist, der durch Punktschweißen (5a, 5b) an die Außenfläche des Flansches angeschlossen
ist, wobei der zumindest eine Zapfen (6, 7) mit dem Komplementärflansch (5) des zumindest
einen Wandelementes (2, 3) verbunden ist, wobei die Wand der beiden Enden des rohrförmigen
Körpers (1) so geformt sind, daß sie eine Abschrägung (1a) bilden, die zweckmäßige
Wege zur Annäherung an die Spindel ermöglichen, die dazu ausgebildet ist, die Spule
während des Betriebes abzustützen.
2. Spule nach Anspruch 1, dadurch gekennzeichnet, daß jeder Zapfen (6, 7) mit dem entsprechenden Komplementärflansch (5) am inneren Rand
durch Schweißen verbunden ist.
1. Bobine pour enrouler un fil métallique, comprenant un corps tubulaire (1) pour supporter
un rouleau de fil qui est doté, au niveau de ses extrémités, d'éléments de paroi (2,
3) pour contenir ledit rouleau, dont au moins un est doté, au niveau d'une surface
dirigée vers l'extérieur, d'au moins un cliquet (6, 7) pour la mise en prise avec
des moyens pour faire tourner ladite bobine, chaque élément de paroi (2, 3) comprenant
un rebord plat (4) avec un pli de renforcement (4a) au niveau du bord externe, qui
est raccordé conjointement par soudage (4b) à l'extrémité correspondante du corps
tubulaire (1), et un rebord complémentaire plat (5) qui est soudé par soudage par
points (5a, 5b) à la surface externe dudit rebord, au moins un cliquet (6, 7) étant
raccordé conjointement audit rebord complémentaire (5) d'au moins un élément de paroi
(2, 3), les deux extrémités du corps tubulaire (1) ayant la paroi formée afin de former
un biseau (1a) qui permet des manières pratiques d'approcher la broche conçue pour
supporter la bobine pendant le fonctionnement.
2. Bobine selon la revendication 1, caractérisée en ce que chaque cliquet (6, 7) est assemblé conjointement au rebord complémentaire (5) correspondant
par soudage au niveau du bord interne.
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description